Stem Cell therapy treatments have undergone wide spread quakery online. It only takes reading a few forum based sites for diseases and disorders to come across numerous postings of people (scammers) advertising stem cell related therapies.
Take notice, these are indeed snake oil salesmen peddaling treatments that don't work. Want proof? Watch this informative story by the trusted people at 60 minutes:
60 Minutes: Stem Cell Scams: Part 1
60 Minutes: Stem Cell Scams: Part 2
60 Minutes: Stem Cell Scams: Part 3